Read More 3 minute read Security Artificial Intelligence OpenAI Launches GPT-5.4-Cyber to Boost Defensive Cybersecurity OpenAI unveils GPT-5.4-Cyber, a cybersecurity-focused model built to help defenders analyze malware and fix software bugs. The company is also expanding its Trusted Access for Cyber (TAC) program to thousands of verified experts. byDeeba AhmedApril 16, 2026